Former Tamil Nadu CM and DMK patriarch M Karunanidhi passed away after battling illness at the Kauvery hospital in Chennai on Tuesday. The 94-year-old leader was earlier shifted to the hospital on the intervening night of July 27-28 after his blood pressure fell down. On July 31, the hospital said Karunanidhi would require an extended period of hospitalization due to “decline” in his general health, although his vital parameters have normalized.